I used to have a ____ computer, but now I have a laptop.
desktop
Pythagoras, a Greek scientist, developed the ____ that the Earth is round.
theory
The _____ told us about Mars and the other planets in our solar system.
astronomer
Why is the _____ so slow today? I can't get on the Internet.
broadband
This laser _____ can print 30 pages a minute.
printer
Mark Zuckerberg is a famous computer ____.
Are you a wildlife _____ ?
biologist
Fibonacci was a _____ who invented the Fibonacci numbers. They are a sequence of numbers: 1, 1, 2, 3, 5, 8, 13, 21, etc.
mathematician
The _______ to my computer is complicated. It's BYlx092.
password
The scientists ____ed the monkeys in a tropical forest to see how they got food.
observed
My colleagues and I are collecting ____ of different bacteria.
specimens
My class is going to ____ a chemical experiment.
do
Albert Einstein was probably one of the greatest ____ of all time. He developped the theory of relativity.
physicist
The _____ for my Instagram account is Butterfly99.
username
Google is the most popular search ______.
engine
Alfred Nobel was a famous _____ who invented a dynamite.
chemist
Alexander Graham Bell ____ed the telephone in 1876.
invented
We always take _____ at the lessons.
notes